tree-wide: fix assorted typos all over the place

That is "success", "unknown", "through", "performance", "[re|un]mapping"
, "access", "default", "reasonable", "[con]currently", "temperature"
, "channel", "[un]used", "application", "example","hierarchy", "therefore"
, "[over|under]flow", "contiguous", "threshold", "enough" and others.

Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/arch/mips/include/asm/sgi/ioc.h b/arch/mips/include/asm/sgi/ioc.h
index 343ed15..57a9719 100644
--- a/arch/mips/include/asm/sgi/ioc.h
+++ b/arch/mips/include/asm/sgi/ioc.h
@@ -164,7 +164,7 @@
 	u32 _unused5;
 	u8 _write[3];
 	volatile u8 write;
-#define SGIOC_WRITE_NTHRESH	0x01	/* use 4.5db threshhold */
+#define SGIOC_WRITE_NTHRESH	0x01	/* use 4.5db threshold */
 #define SGIOC_WRITE_TPSPEED	0x02	/* use 100ohm TP speed */
 #define SGIOC_WRITE_EPSEL	0x04	/* force cable mode: 1=AUI 0=TP */
 #define SGIOC_WRITE_EASEL	0x08	/* 1=autoselect 0=manual cable selection */